ANC90LA011

NTSB accident investigation · Cessna 150 · Birchwood, AK · November 7, 1989

Accident · No injuriesLimited investigationFinal report
Date
November 7, 1989, 18:05 local (22:05 UTC)
Place
Birchwood, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N714MSCessna 150
Weather
Visual (VMC) · Night/dark
Status
Completed · report February 15, 1991
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19891107044709A
Case key
5321

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Failure of the pilot to maintain proper runway alignment during the takeoff roll. Related factors were: dark night, snow covered runway, inadequate snow removal from the runway by personnel (who were responsible for snow removal), and the snowbank (berm).

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with terrain/waterTakeoff - initial climb
Light condition - dark nightFactor
Airport facilities,runway/landing area condition - snow coveredFactor
Proper alignment - not maintainedPilot in commandCause
Terrain condition - snowbankFactor
Airport snow removal - inadequateAirport personnelFactor

Analysis

The plt rprtd that before he started his takeoff, he could see rwy lights at the FAR end of the rwy. He aligned the acft for takeoff by referencing the snow berms (beside the rwy) & by sighting down the rwy. The takeoff roll seemed normal until he rotated the acft for lift-off. As the acft lifted off, it struck the snow berm on the right side of the rwy & nosed over. An investigation revealed that arpt psnl had plowed the right berm at a 20 deg angle away from centerline of the rwy to a point where it was allowed to angle back abruptly toward the runway. The acdnt occurred where the right berm angled sharply to the left.

Aircraft

Registration
N714MS
Reported as
Cessna 150
Category
Airplane
Serial number
15079286
Engine
Continental O-235, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Darren A. Delaney
Registered owner
Gary Beu
Airworthiness certificate
Standard, Normal
Departed
Z15
Airport
Z15 · Birchwood, runway 19, 4,010 × 100 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
21
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
296 total · 22 in this make and model · 272 as pilot in command · 15 in the last 90 days · 7 in the last 30 days

Weather

Conditions
Visual (VMC) · Night/dark
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
28 °F, dew point 19 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.